Merge tag 'u-boot-marvell-20250516-v2' of https://source.denx.de/u-boot/custodians/u-boot-marvell

CI: https://dev.azure.com/sr0718/u-boot/_build/results?buildId=392&view=results

- mvebu_espressobin_ultra-88f3720_defconfig: enable hwrng
- kirkwood: Convert to DM_SERIAL for Kirkwood boards
- kirkwood: Convert to DM_SERIAL for Synology DS109 board
- cmd: tlv_eeprom: return after successful read from EEPROM